consoledriver.java

只是一个简单模拟操作系统

/*
 * ConsoleDriver.java
 *
 * Created on 2006年3月18日, 下午2:59
 *
 * To change this template, choose Tools | Options and locate the template under
 * the Source Creation and Management node. Right-click the template and choose
 * Open. You can then make changes to the template in the Source Editor.
 */

package os.iodevice;

/**
 *
 * @author Vernkin
 */
import javax.swing.*;
import os.process.*;
import os.cpu.Interrupt;
import java.awt.event.*;

public class ConsoleDriver implements Runnable,ActionListener
{
    final private String name = "[ConsoleDriver]";
    
    IOGate ig;
    MyProcess currentPro;
    
    int in;
    
    //display area
    JLabel proInfo;
    JTextArea consoleOut;
    JTextField consoleIn;
    JButton enter;
    JTextArea commonOut;
    
    
    
    /** Creates a new instance of ConsoleDriver */
    public ConsoleDriver(JLabel proInfo,JTextArea consoleOut,JTextField consoleIn,JButton enter,JTextArea commonOut){
        ig = IOGate.getInstance("Console");
        this.proInfo = proInfo;
        this.consoleOut = consoleOut;
        this.consoleIn = consoleIn;
        this.enter = enter;
        this.commonOut = commonOut;
        in = -1;
        init();
    
    }
    
    private void init(){
        enter.addActionListener(this);
        enter.setActionCommand("Enter");
        consoleOut.append(name+" Activated"+"\n");
        this.commonOut.append(name+" Detected"+"\n");
        currentPro = null;
    }
    
    public void run(){
        while(true){
            if(ig.driverHaveTask()){
                int interrupt_num = ig.getInterruptNum();
                    
                if(interrupt_num == Interrupt.ConsoleOut_INTERRUPT){
                    currentPro = ig.getProcess();
                    currentPro.setStatus("ConsoleOut");
                    proInfo.setText("Current Process Infomation(Out) : Name "+currentPro.getName()+"  ID:"+currentPro.getID());
                    consoleOut.append(name+currentPro+"[Output]"+((char)ig.getData())+"\n");
                    commonOut.append(name+currentPro+"[console output......]"+"\n");
                    currentPro = null;
                    ig.driverFinishWork();
                }
                else if(interrupt_num == Interrupt.ConsoleIn_INTERRUPT){
                    if(currentPro == null){
                        currentPro = ig.getProcess();
                        currentPro.setStatus("ConsoleIn");
                        proInfo.setText("Current Process Infomation(In) : Name "+currentPro.getName()+"  ID:"+currentPro.getID());
                        consoleOut.append(name+currentPro+"[waiting for input]"+"\n");
                        commonOut.append(name+currentPro+"[console input....]"+"\n");
                    }
                    if(in >=0){
                        ig.driverSetData(in);
                        in = -1;
                        currentPro = null;
                        ig.driverFinishWork();
                    }else
                        ig.rest(500);
                }//end else if
                
            }else{
                   ig.rest(2000);
             }//end else
        }//end while
        
    }
    
    
    public void actionPerformed(ActionEvent e){
        if(e.getActionCommand().equals("Enter") && currentPro != null){
            String s = consoleIn.getText();
            if(s.length()==0){
                in = -1;
                consoleOut.append(name+"[You haven't input a character yet]"+"\n");
            }else{
                char tmp = s.charAt(0);
                consoleOut.append(name+currentPro+"[You input]"+tmp+"\n");
                commonOut.append(name+currentPro+"[Input]"+tmp+"\n");
                in = (int)tmp;
            }
        }
    }
}